/*
 * Copyright 2007 David R Kirkland 
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");  
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at 
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License.
 */

using NetSpider.Retrieval;

namespace NetSpider.Core
{
    public class Monkey : IMonkey
    {
        private readonly IFetchQueue _fetchQueue;
        private readonly IFetcher _fetcher;

        public Monkey(IFetcher fetcher)
        {
            _fetcher = fetcher;
            _fetchQueue = FetchQueue.Create();
        }

        public void Start(string uri, ISearchStrategy strategy)
        {
            bool continueProcessing = true;
            _fetchQueue.PutItem(uri);

            while(_fetchQueue.HasItems() && continueProcessing)
            {
                IFetchRequest item = _fetchQueue.GetItem();
                IFetchResult result = _fetcher.Fetch(item);
                strategy.ProcessContent(result, _fetchQueue);
            }
        }
    }
}